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"Spambox" Folder in Outlook"The Microsoft Exchange Administrator has made a change that requires you quit and restart Outlook"#5.0.0 smtp; 5.3.0 - Other mail system problem 554-'5.4.6 Message exceeded 50 hops, this may indicate a mail loop250 2.1.5 RESOLVER.OOF.IntToExt; handled internal OOF addressed to external recipient402 4.2.0 Recipient deferred because there is no Mdb403 4.7.0 encryption too weak 0 less than 128421 4.3.2 Service not active421 4.3.2 Service not available421 4.4.2 Connection dropped due to TimedOut.441 4.4.1 Error all outgoing mails are in Queue441 4.4.1 Error encountered while communicating with primary target IP address450 4.4.318 Connection was closed abruptly450 4.4.318 Connection was closed abruptly450 4.5.0 no recipient succeeded from Exchange Online to Exchange 2013 on-prem450 4.7.1 error client host rejected: cannot find your hostname450 4.7.25 Client host rejected451 4.4.0 SMTPSEND SuspiciousRemoteServerError; remote server disconnected abruptly; retry will be delayed};[FQDN=...};{ip=....}]451 4.7.0 Temporary server error. Please try again later. PRX2451.4.4.0 Primary target IP address responded with "421.4.2.1. Unable to connect." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts or delivery failed to all alternate hosts."500 5.3.3 Unrecognized command error550 - 550-Requested action not taken: mailbox unavailable 550 invalid DNS MX or A/AAAA resource record )550 - No such domain at this location550 5.4.4 Error when using Contact to Relay mail550 5.7.1 Sender ID (PRA) Not Permitted554 5.7.1 This message has been blocked because the HELO/EHLO domain is invalid from specific domainA communication failure occurred during the delivery of this message. Please try to resend the message later. If the problem continues, contact your helpdesk.A valid Migration mailbox could not be found for this organizationAdd information to a Transport rule from CSVAutodiscover DNS records for multiple domain namesBackpressure activated after Exchange CU5 install-version bucketsBlock incoming calendar / meeting requests to a specific mailbox / user using transport rules or an Outlook rule?Can I use a different port (than 25) for my Office 365 Exchange Online Protection to my on premise server? My ISP is blocking port 25.Cannot enable custom DSNCheck which folder the message was deliveredCommunication Errorconfigure SMTP authentication for exchange 2013Connection refused on port 25Criteria for determining DirectionalityDelivery Report Error '[{LRT=};{LED=};{FQDN=};{IP=}]'Delivery report shows status of Pending for external address. Email sent to both internal and external addresses.Disable notification - "Your meeting was forwarded"Disable Read Receipts but allow Out of Office repliesDisable/Configure back pressureDoes the mail flow rule able to identify the type of Calendaring message?Don't see TlsCertificateName when running Get-ReceiveConnectordsn=5.0.0, stat=Service unavailableDuplicate disclaimer generated for new emailsE-mails are not going out. all emails stuck in queue exchange 2013Email delivery fails [{LRT=};{LED=550 5.2.3 RESOLVER.RST.RecipSizeLimit; message too large for this recipient};{FQDN=};{IP=}]Email Encryption with Shared MailboxesEmails missing with HADISCARD ExplicitlyDiscarded in messagetrackingEmails not going through, ExplicitlyDiscarded, HADISCARDEMAILS Stuck in QUEUE - EXCHANGE 2013Enable auth login on exchange 2013 receive connectorEncrypted emails are not showing up in a shared mailbox on outlook client but are showing up in Outlook web appError 554 5.4.6 Hop count exceeded - possible mail loopError returned from SMTP Server. The error message was: [Exception reading response]. The message could not be sent.Error sending emails to Internet: Failed to connect. Winsock error code: 10051Error sending message from Powershellerror: 550 5.6.0 CAT.InvalidContent.Exception: TextConvertersExceptionEvent 12017: An internal transport certificate will expire soon.Event 36875: remote server requested SSL - which remote server?EventID HAREDIRECTFAILExchange 2010 SPF RecordExchange 2010 The remote pipeline has been stopped. It was running the commandExchange 2013 CAS server returned '500 Message rejected'Exchange 2013 Malware Filter and ScanningProcess.exeExchange 2013 On Prem - OOTO / NDR Replies Fail DMARC Authenication OutboundExchange 2013 relaying (Inbound Proxy Internal Send connector acceptint external IPs?)Exchange 2013 SMTP RelayExchange 2013- Forward Email Account to Groups or Multiple UsersExchange 2013- Message tracking- EventId FAIL Source SMTPExchange 2013: How To Change Email Attachment Size LimitExchange 2013/2016 - Blocking recipients that are not listed in the global address bookExchange 2016 test Mail Flow ErrorExchange Server 2013: Failed to connect. Winsock error code: 10060, Win32 error code: 10060.Exchange server and DKIMExchange server is receiving messages but not sending themExchange Server not sending to GmailExchange Server Using Wrong Certificate for TLS?Exchange Toolbox Error when launchingExchange Transport Content Filering False PositiveExternal e-mail disclaimer transport rule is being applied to SMTP relay messages from application servers within networkFIXED - Exchange 2013 - Can I Recreate Default Frontend Receive Connector SAFELY?Forwarding emails from one distribution group to another distribution groupFQDN on EHLO for ExternalFree Busy federation between two office365 domainhard direct fail and no available shadow serversHelp! Event ID 12014 - Microsoft Exchange 2013 could not find a certificate!?!?!?How do I delete message from Submission queueHow this spoof worked?How to change smtp port from 25 to 587 in Exchange 2013How to configure Edge Transport server to relay external domainsHow to Track the Original Location of an Email via its IP AddressHubTransport and FrontEnd Transport Receive ConnectorsIgnored X-OriginatorOrg header value 'domain name' because session capabilities do not allow itInbound Proxy Probe Undeliverable (Health Mailbox)Internal email goes to junk folderInternal MX recordInvalid HELO name (See RFC5321 4.1.1.1)LDAP Server is unavailable error on Edge Transport server.List of who received a message to a dynamic distribution group?local loop was detected--Exchange server 2013 and Exchange online hybridLog onto incoming mail server (POP3): Your server does not support the connection encryption type you have specified. Try changing the encryption method. Contact your mail server administrator or Internet service provider (ISP) for additional assistance.Mail ending up in draftsMail flow issue from On-prem to Office 365 urgent.Mail flow issues between Office 365 Exchange online and On-Prem Exchange Server.Mail lost during Exchange Server DownMail received but server sends back '5.4.7 Delivery expired' mesageMail Showing has delivers but not received to user inboxMail-enabled public folders not receiving external mail.mail.protection.outlook.com Delistingmailbox recipient does not have a mailbox databaseMailbox Server Role Services not running: MSExchangeDeliverymailflow broken - error 451 4.7.0Mails not getting deliveredMaximum concurrent connections between outlook and exchange serverMaxInboundConnectionPerSource = Unlimited. EventID: 1021Meeting invites goes to deleted itemsMembers of distribution groups receive a duplicate email when they are also a recipientMessage rerouted and delayed by store driver.Message trace detailsMessage Tracking for Rejected MessagesMessages stuck in "Retry" in Submission Queue - Exchange 2013Messages stuck in DNS connector deliveryMessages stuck in Queue Last Error: 452 4.3.1 Insufficient system resourcesMicrosoft Exchange Server Auth Certificate about to Expire on the 22nd !Microsoft Filtering Management Service service can't start with error 0x80004005: Unspecified errorMicrosoft.Exchange.Data.TextConverters.TextConvertersException: Input document is too complexMSExchangeTransport service failed to start servicesMultiple IPs for Single MX recordmultiple ptr for single IP addressNDR 502 5.5.1 command not implementedNeed some users to be able to connect/send via SMTP from outside- event 1018 does not have submit permissions on SMTP Recieve connectorOffice apps unable to access or connect to RMS server(On-Prem).Powershell script to add multiple domains to a transport ruleProviding the send as access rights for a user from powershellPTR RecordPublish to GAL button not availableRecipient deferred because there is no MdbRemote Server returned '420 4.2.0 Recipient deferred because there is no Mdb'Remote Server returned '530 5.7.1 Client was not authenticated'Remote Server returned '550 5.1.11 RESOLVER.ADR.ExRecipNotFoundRemote Socket Error Exchange 2013 SMTP Receive LOGRemove Expired CertificateRemove Internal Exchange Server Names and IP Addresses from Message Headers on Exchange server 2013Renaming the public folder mailboxReplace Return-Path using TransportruleRestricting one external domain to send email to internal distribution groupRule to delete emails with utf-8 encoded subjectsSchannel Fatal Alert 46Send as is not working when mailbox is hidden from address listSend As or Send On Behalf - PermissionsSend connector for specific email domainSend on Behalf of Does not appear in From:Sender and Recipient has same email addressSending warning to sender for external email addressSensitive Word List - Content FilterServer components states keep getting marked at inactiveserver error 452 4.5.3 too many recipientsServer Error 550 5.1.2 Unknown Host or DomainServer returned '400 4.4.7 Message delayedSet-Mailboxautoreplyconfiguration LINE BREAK issueSetting a delay on all emails sentSetting Maximum concurrent smtp outbound connection limitsShadow redundancy eventID 22004 keep happening after Exchange 2013 CU17 upgradeShannel 36887 - Missing Certificates in Trusted Root Certificate Authority StoreSMTP Relay Configuration on Default Receive ConnectorSMTP transient error: 421 Service not availableSome distribution lists not working when sent over SMTP using C#Specific mails are not delivered to the user inbox. "Message delivery is taking longer than expected".SPF Record UDP Truncated ErrorsSSL Certificate: Revocation Check FailedSTARTTLS not advertised on relay receive connectorTarget host responded with Error. 535 5.7.3 Authentication Unsuccessful.The recipient's email system isn't accepting messages now. Please try resending this message later or contact the recipient directlyThe server response was: #5.1.0 Address rejected.The server response was: 4.4.2 Message submission rate for this client has exceeded the configured limitThe STARTTLS certificate will expire soonThe store ID provided isn't an ID of an Item.This message can't be moderated because the approval system is too busy and can't accept messages now. Please try resending this message later, or contact the recipient directly.This message wasn't delivered to anyone because it's too large. The limit is 10 MB. This message is 13 MBTLS negotiation failed with error AlgorithmMismatchTransient mail flow problem (Source: STOREDRIVER, EvendId: SUBMITDEFER )Transport rule to block CC'd email to external email addressTransport rules using distribution group as recipientUnable to receive emails from office 365 using TLS 1.2Unable to receive external emails to my Exchange 2013Unable to send emails to internet after Exchange CU15 upgradeUnable to start Microsoft Exchange Transport and Microsoft Filtering Management Service (FMS)Undocumented EventID in the message tacking logs: HAREDIRECTFAILView the audit logs for Transport RulesVirtual Exchange 2013 CU1 raises Receive(SocketError) in SMTP logwhere is this exceed header size message coming from?X-Auto-Response-Suppress DR, OOF, AutoReply?X-Forwarded-For Header in mail headersX-MS-Exchange-Organization-AuthAs is configured as Internal other than Anonymous from internet mailsX-MS-Exchange-Organization-AuthMechanism: possible valuesYou don't have permission to perform this action - OWA error while sending mailsYour message can't be delivered because you do not have permissions to send to this email address.